Phlbts and thombophlb of unsp deep vessels of r low extrem

This code signifies inflammation of a vein (phlebitis) or inflammation of a vein with associated clot formation (thrombophlebitis) affecting an unspecified deep vessel within the right lower extremity. It indicates that the specific deep vein involved (e.g., femoral, popliteal, tibial) was not documented.

Apply this code when documentation confirms phlebitis or thrombophlebitis of the right lower extremity, but the specific deep vein affected is not identified. This is often used when imaging reports or physician notes state "deep vein thrombophlebitis of the right lower extremity" without further anatomical detail.

• Avoid using this code if a more specific deep vein (e.g., femoral, popliteal) is documented; instead, use the appropriate specific code.
• Ensure documentation clearly specifies "deep" vessels, as superficial thrombophlebitis codes are distinct.
• Laterality (right lower extremity) must be explicitly stated in the medical record to support this code.